Step 5:  The stock air filter box and intake piping were removed, leaving the MAF sensor intact.  The CAI was then inserted through the whole leading below and screwed into the MAF sensor with the existing bolts (6 mm nuts and thread lock are needed to secure the bolts).  For me, the fit at the whole in the chassis was quite snug.  I had to use considerable force and rocking to get it through.  No rubber boot was needed to fill the space.  We'll see how this works...  The air temperature sensor was inserted and secured with a little bit of caulking.  The filter was attached from below.

Slide 5 of 6